<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
    div{
        width: 200px;
        height: 150px;
        border: solid 1px green;
        margin: 30px 500px;
    }
    div div{
        width: 200px;
        height: 30px;
        border: green solid 1px;
        background-color: gold;
        margin: -1px;
    }
</style>
<body>
    <div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
    </div>
</body>
</html>